#!/usr/bin/env node

const Koa    = require('koa'),
      Router = require('koa-router');
      bodyparser = require('koa-bodyparser');
      log    = console.log;

let app    = new Koa(),
    router = new Router();

router.get('/api/tasks/', async (ctx,next)=>{//router中可以不写next
    let {page,limit} = ctx.query;//解析查询字符串

    log(ctx.header['user-agent']);//解析请求头
    log(`得到代办事项列表,page = ${page}, limit = ${limit}`);
    ctx.body = '查询成功';
});

router.post('/api/tasks/', async (ctx,next)=>{
    let {task} = ctx.request.body;//解析请求体

    log(`提交代办事项, task : ${task}`);
    ctx.body = '添加成功';
});
  
router.put('/api/tasks/:id', async (ctx,next)=>{
    let {id} = ctx.params;
    let {task} = ctx.request.body;
    log(`修改代办事项, id=${id}, task:${task}`);
    ctx.body = '修改成功';
});

router.delete('/api/tasks/:id',async (ctx,next)=>{
    let {id} = ctx.params;
    log(`删除代办事项, id=${id}`);
    ctx.body = '删除成功';
});

app.use(bodyparser({ enableTypes:['json', 'form', 'text'] }));
app.use(router.routes());//将路由器加载到中间件中

app.listen(8080);


